Air-compressor.



No. 844,173. i PATENTBD P31112, 1907.

A. MOGARTHY. A

AIR ooMPREssoR.

APPLICATION IILBD DEO. 2. 1906.*

2 SHEETS-SHEET 1.

No. 844,173. vPA'IENTED PEB. 12, 1907.

A. MOGARTHY.

AIR COMPRESSOR.

APPLICATION FILED DBO. 2. 1905.

2 SHEETS-SHEET 2.

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NETE STATES ALEXANDER MCCARTHY, OF NEW YORK, N. Y.

AIR-COMPRESSOR.

Lw o. 844,173.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed December 2, 1905. Serial No. 289.943.

T @ZZ whom, it ntay con/cern:

,Be it known that 1, ALEXANDER MCCAR- 'rHr, a citizen of the United States, residing at New York city, New York county, New York, have invented certain new and useful Improvements in Air-Compressors, of which the 'following is a full, clear, and exact description.

My invention relates to apparatus for compressing air.

The object of the invention is to provide a construction which may be manufactured economically and which will operate with efficiency to compress air rapidly` The invention consists in improvements the principles of which are illustrated in the accompanying two sheets of drawings. Briefly, it comprises the employment of one or more annular members carrying a plurality of cups or air-catchers. The construction is mounted on a suitable shaft and provided with means for rotating it at a high rate of speed, so that air is caught in the buckets and forced into the tubular ring and then through a suitable conduit to a reservoir or other place where the compressed air is required to be stored or used.

Figure 1 is a plan view of an air-compressor embodying the improvements of my invention. Fig. 2 is a vertical section of the same. Fig. 3 is a plan view, on a larger scale, of a detail of construction, illustrating one method of attaching an annular member to the shaft. Fig. 4 is a fragmentary detail of one of the annular members with an airbucket and an air-conduit. Fig. 5 is another view of the air-bucket with the annular member in section.

1 indicates the shaft, preferably mounted in a vertical position on a step of suitable construction, such as 2. The shaft is adapted to be driven in any manner-for instance, by means of an electric motor 3.

4, 5, and 6 are annular members or rings, each of which is preferably formed in two semicircular segments secured together and supported in a suitable way on the shaft.

7 7, &c., indicate the buckets for gathering in or directing the air when the annular members are in rotation in the direction of the arrow, as seen in Eig. 1. The annular members may be of any suitable diameterfor instance, twelve feetand the air-buckets are arranged at intervals around their peripheries. The air-buckets are preferably conical in form and face in the direction in which the compressor is rotated, so that air in front of the buckets is compressed and forced into the annular members.

The upper member 4 is united by a series of spokes 8 8 8 8 to the hub 9, which is secured in a suitable manner on the shaft 1. A receiver, preferably formed in two halves 10 10', is mounted on the upper end of the shaft 1. lt has a large chamber to which the compressed air is led from the member 4 through the hollow tubes 11 11.

12 12 are hollow spokes or tubes for the lower member 6, which leads to a hollow hub formed in two parts 13 13. (Particularly shown in Fig. 3.) From the two halves of this hub lead upright pipes or conduits 14 14 up to the chamber in the receives 10.

15 15 are upright connecting-tubes located between the members 4, 5, and 6, serving to support the intermediate member 5 and providing air-conduits connecting the three members. Each tube 15 has a branch 16 pointing in each direction, and each end of the branch carries additional air-buckets 7.

17 is the outlet-pipe from the receiver 10, which is stationary and provides a bearing for the upper end of the receiver and shaft. 1S is a support or bearing for reinforcing the lower end of the outlet-pipe 17. Any suitable form of packing may be employed at the joint between the outlet-pipe 17 and the receiver 10, so as to prevent the escape of the compressed air.

19 is a valve, preferably of the puppet type, for preventing air in the outlet-pipe escaping into the receiver 'when the compressor is inactive.

2O 2() are valves of any suitable type provide-d in the receiver 10 for preventing air from escaping from the receiver out through the conduits 11 11 when the device is not in operation. y

21 21 are valves for the upper ends of the conduits 14 14 to prevent air from escaping from the receiver in this direction. Suitable valves may be placed in the hollow hub 13 13@ if desired, or at any other joint.

The air-buckets 7 (shown particularly in Figs. 4 and 5) are preferably conical in shape and formed of sheet metal having a shank 22, which extends through the member 6 and is secured in place by the nut 23. The air escapes into the annular member 6 through the passages 24 and 25.

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.The air-compressor may run at high rates of speed*for instance, Jfrom two hundred to five hundred revolutions per minute-and will consequently compress the air rapidly in large quantities. Any number of the collecting-rings may be mounted on the shaft, depending upon the character of work which they are called upon to perform. The compressor is free from the objections incident to reciprocating parts and large inclosing chambers or casings, such as are commonly employed in other forms of devices.

Vhat I claim is- 1. In an air-compressor, a plurality of tubular rings, means for supporting and rotating said rings, and a plurality of air-receiving buckets carried by said rings.

2. In an air-compressor, a rotating shaft, a tubular annular member, a plurality of airreceiving buckets carried by said member, a receiver mounted on said shaft, and connecting-tubes from said member to said receiver.

3. In an air-compressor, a tubular annular member, a plurality of air-receiving buckets carried by said member, a hollow hub, and a plurality of hollow spokes connecting said member to said hub.

4. An air-compressor comprising a tubular said hub, and a conduit connecting said hub and said receiver.

5. In an air-compressor, a plurality of aircollecting rings carrying airreceiving buckets, connecting-tubes between said rings, and intermediate air-receiving buckets carried by said tubes.

6. In an air-compressor, a plurality of collecting-rings, a hollow hub, lhollow spokes connecting one of said rings to said hub, and means for supporting an intermediate ring from the adjacent upper and .lower rings,

7. In an air-compressor, a plurality of colmeting-rings, a hollow hub, hollow spokes connecting one ring to said hub, a receiver,

and conduits from said hub to said receiver.

S. In an air-compressor, a plurality of collectmg-rlngs, tubes connecting said rings, a

receiver, and pipes connecting one of said ALEXANDER MCCARTHY, Jr., L. VREELAND. 

